User Portlet
| Discussions |
|---|
| Hello there, just in advance, I am relatively new to Mathematica. I have a set of coupled differential equations that I have already solved using 'NDSolve'. In these equations, Parameters like 'M' or 'l' occur. Now I want to vary these Parameters... |
| Hi, I am trying to plot the angles of a spherical pendulum fixed to a oscillating cart. I have derived the equations of motion, when I try to solve the equations using "NDSolve", following error occurs: > `NDSolve::ndsz: At t ==... |
| Hello, I am trying to plot a double pendulum. But when I try to plot the results, this error occurs: "NDSolve::ndsz: At t == 0.5517583468854775`, step size is effectively zero; singularity or stiff system suspected." Any idea what I've got... |
| I am trying to derive the equations of motion for the double pendulum and then solve and plot it. Unfortunately, it does not work. Any suggestions? Remove[l1, l2, m1, m2, g] x1 = l1*Sin[\[Theta]1[t]]; x1' = D[x1, t]; y1 =... |
| Hello, I am trying to derive the equations of motino for a simple pendulum using the Euler-Lagrange Equation. This works very well until I try to solve the equation numerically using "NDSolve". The error code is: "Equation or list of equations... |
| Hi, in a Notebook, I defined some constants by numerical values. But I cannot erase that definition. Neither by opening a new Notebook, nor by using the command "Clear". Does someone know how to do that? |
| Hello, I am very very new in Mathematica. I am deriving equations for a system of pendulums using the Lagrange function. As you can see, I wrote down the equations of the coordinates of the pendulums, and the output then is the Lagrange function,... |